728881303 has 4 divisors (see below), whose sum is σ = 729372960. Its totient is φ = 728389648.

The previous prime is 728881297. The next prime is 728881319. The reversal of 728881303 is 303188827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 728881303 - 2⁹ = 728880791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728881343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243598 + ... + 246571.

It is an arithmetic number, because the mean of its divisors is an integer number (182343240).

Almost surely, 2^728881303 is an apocalyptic number.

728881303 is a deficient number, since it is larger than the sum of its proper divisors (491657).

728881303 is a wasteful number, since it uses less digits than its factorization.

728881303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491656.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 728881303 is about 26997.8018179258. The cubic root of 728881303 is about 899.9511508466.

The spelling of 728881303 in words is "seven hundred twenty-eight million, eight hundred eighty-one thousand, three hundred three".